JP3026584U - Wire drawing bobbin - Google Patents

Abstract

(57) [Abstract] [Purpose] In the conventional wire drawing bobbin, it was necessary to wire the wire drawing terminal into the hole to prevent the lead wire wound around the groove from coming loose. (EN) Provided is a wire drawing bobbin which can be applied as a bobbin for an automatic winding and detaching wire drawing machine by eliminating work. [Structure] A groove 4 having a flat bottom portion is provided on a peripheral portion of one flange of an iron bobbin to form a grooved flange 3. Next, the spring body 1 is mounted in the groove 4 by the support rod 2.
In the same manner, attach another spring body 1 to the grooved collar 3
The wire drawing bobbin 7 of the present invention is attached to the target position of
And

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wire drawing bobbin, and more particularly to a wire drawing bobbin in which a groove portion for winding a wire for drawing out is wound around the periphery of one of the collars.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, an iron bobbin (hereinafter abbreviated as an iron bobbin) has been used as a wire drawing bobbin used for winding wire, for heavy-duty winding, for example, for 100 kg winding. In the wire drawing step, for example, an annealed copper wire having a diameter of 2.6 mm is used as a bus bar, and a copper wire drawn to a predetermined diameter (for example, 0.5 mmφ) by a wire drawing machine is wound on a wire drawing bobbin.

When used in the next step, for example, when manufacturing a magnet wire, the bobbin is placed vertically so that the collar portion of the wire drawing bobbin is parallel to the ground, and the wire drawing is wound around the bobbin. Are continuously extended upwards. As manufacturing progresses, the amount of wire drawn on the bobbin gradually decreases and eventually disappears. However, considering the stabilization of quality and cost, it is necessary to continuously manufacture the wire, and the drawn wire may be continuously transferred to the wire wound on the next bobbin. Is required. To do this, it is necessary to connect the terminal at the end of the drawn wire and the wire drawing terminal stopped on the surface of the next bobbin.At this time, the wire drawn on the bobbin is drawn. If there is a wire drawing terminal inside the wire, connection with the next bobbin is impossible.

Therefore, as shown in FIG. 3, among the collars on both sides, the collar that comes into contact with the ground when placed vertically is used as a grooved collar 3 having a groove 4 at the peripheral edge, and the collar is for insertion into the groove 4. A wire-drawing bobbin capable of winding several turns (hereinafter abbreviated as lead wire) w for several turns has been conventionally used. At this time, in order to prevent the lead wire w from coming loose, the wire drawing terminal portion had to be fixed by being bent several times in the hole h provided in the grooved collar 3. The groove 4 for winding the lead wire was generally V-shaped.

At the time of manufacturing, in order to connect the terminal at the end of the wire drawing being drawn and the wire drawing terminal appearing on the surface of the next bobbin, first, in the hole h of the bobbin being drawn. Unravel the end of the lead wire w that was loosely fixed, and then rewind it, then rewind the wire drawn on the surface of the other wire drawing bobbin for a certain length and use both silver wire joints. It was connected by cold pressing.

[0006]

[Problems to be solved by the device]

 In the conventional wire drawing bobbin, in order to prevent the lead wire wound around the groove from coming loose, the wire drawn first from the wire drawing machine is wound around the groove for several turns, and then the wire drawing end is attached to the hole of the collar. It is necessary to carry out the work of so-called entanglement in the hole several times after passing through the edge of the tsuba after passing through the edge of the tsuba, but it is difficult to pass the wire drawing terminal into the hole and it requires skill. It took a long time. Further, the conventional wire drawing bobbin cannot be applied as a bobbin for an automatic winding / detaching wire drawing machine.

The present invention has been made in order to solve the various problems of the above-mentioned conventional technique, and the wire drawing terminal portion is twisted in the hole to prevent the lead wire wound around the groove from coming apart. It is an object of the present invention to provide a wire drawing bobbin which can be applied as a bobbin for an automatic winding / removing wire drawing machine without requiring such work.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention relates to a wire drawing bobbin having a groove for winding a lead wire around the periphery of one of the collars, and includes a spring body for holding the lead wire. It is on a wire drawing bobbin provided in the groove.

Further, the present invention provides a wire drawing bobbin having a spring force such that when the lead wire is wound around the lead wire, the wire enters between the rings of the spring body, and the wire entering between the rings does not return. is there. Further, the present invention resides in a wire drawing bobbin in which the bottom of the groove has a flat shape. Although the number of spring bodies may be one, two or more spring bodies are preferable in order to properly hold the lead wire.

[0010]

[Action]

 The spring body 1 used for the wire drawing bobbin 7 of the present invention is such that when several turns of the wire drawing at the beginning of winding are wound around the groove 4, the wire drawing enters between the rings of the spring body 1 and the drawn wire is returned. Since there is no spring force, the lead wire w is favorably held in the groove 4. Further, when the shape of the bottom of the groove 4 is flat, the lead wire w is in close contact with the bottom surface, so that the wire drawing is more favorably held.

[0011]

【Example】

 An embodiment of the wire drawing bobbin of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. FIG. 1 is a schematic view showing an embodiment of the wire drawing bobbin of the present invention. FIG. 1 (a) is a front view, and FIG. 1 (b) is an enlarged view of a main part within a dotted circle of (a). is there. Further, FIG. 2 is a cross-sectional view of the portion aa in FIG. 1 (a).

Example 1 A 100 kg wound iron bobbin with a collar diameter of 400 mm, a body diameter of 265 mm, and a body length of 280 mm, which is placed on the ground (mounting table) when used and has a width of 10 mm and a depth of 8 mm at the bottom. A groove 4 having a flat shape is provided as the grooved flange 3. Inside the groove 4 of the grooved collar 3, the spring body 1 having a thickness of 0.5 mm, an outer diameter of the ring of the spring body of 5 mm, a length of the spring body of 11 mm, and a number of turns of 9 is supported rod 2. Installed by. Similarly, another spring body 1 was attached to the grooved collar 3 at a target position, that is, at a position of 180 degrees, to obtain a wire drawing bobbin 7 of the present invention.

The wire drawing bobbin 7 was attached to a predetermined position of an automatic winding and detaching wire drawing machine (not shown), and wire drawing was performed continuously. In this continuous wire drawing, first, several turns of the wire drawing at the beginning of winding on the bobbin 7 are wound around the flat groove 4 having the shape of the bottom portion as the lead wire w and held by the sprinkling body 1, and subsequently drawn. The wire is continuously wound around the body portion 6, and when the bobbin 3 is fully wound, the bobbin is automatically switched to the next bobbin.

With respect to the bobbin after being fully wound, it was confirmed whether or not the lead wire was satisfactorily held in the groove, but the lead wire was satisfactorily held between the rings of the spring body. In addition, this fully wound wire bobbin was transported by lift for the manufacture of enamel wire, but the lead wire was not exposed.

[0015]

[Effect of device]

 The wire-drawing bobbin of the present invention has a pulling force that prevents the wire-drawing wire from entering the gap between the rings of the spring body when the wire-drawing wire at the beginning of winding is wound around the groove as a lead wire and does not return. Wire drawing is well retained in the groove. Therefore, it is no longer necessary to hang the wire drawing end into the hole and fix it as in the conventional case. Therefore, it can be favorably used not only as a wire drawing bobbin for a general wire drawing machine but also as a wire drawing bobbin for an automatic winding / detaching wire drawing machine, so that work efficiency is significantly improved. The effect of contributing to the industry is extremely large.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the wire drawing bobbin of the present invention. (a) is a front view. (b) is an enlarged view of the main part within the dotted circle in (a).

FIG. 2 is a cross-sectional view of a portion aa in FIG. 1 (a).

FIG. 3 is a schematic view showing a conventional wire drawing bobbin. (a) is a front view. (b) is an enlarged view of the main part within the dotted circle in (a).

[Explanation of symbols]

 1 spring body 2 support rod 3 grooved collar 4 groove 5 collar 6 body part t shaft hole w lead wire (drawing wire)

Claims (3)

[Scope of utility model registration request] 1. A wire drawing bobbin having a groove for winding a wire for drawing out on the periphery of one of the collars, wherein a spring body for holding the wire for drawing out is provided in the groove. A wire drawing bobbin that is provided inside. 2. When the wire for winding the wire is wound around the spring body, the wire draws between the rings of the spring body,
The wire-drawing bobbin according to claim 1, wherein the wire-drawing bobbin has a spring force that does not return the wire-drawing that has entered between the wheels. 3. The wire drawing bobbin according to claim 1, wherein the shape of the bottom of the groove is flat.